hit the sack

hit the sack or hit the hay

Meaning:

• to go to bed
• to go to sleep

Example:

1. I am really tired after all that exercise. I am going to hit the sack.
2. After the long road trip, we were all dead tired and ready to hit the hay as soon as we reached home.
3. This job is really sucking the life out of me. I haven't hit the sack in nearly twenty four hours!
4. Before I hit the sack, I make it a point to check whether all the doors are locked and all the lights are turned off everyday.
5. He wanted to hit the sack and did not feel like going out to party with his friends.
6. They've already hit the sack as they have to catch an early morning flight tomorrow.
7. Even though he had hit the hay long back, he continued to toss and turn in his bed and couldn't get any sleep.
8. After I hit the sack, I read for sometime before turning off the lights and going to sleep.

Origin:
This phrase originated in America around the late 1800s to early 1900s, when mattresses used to consist of old sacks filled with hay or straw.